About The Environment
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ABOUT THE ENVIRONMENT
Question 1: What is the Environment?
Answer: The environment refers to the surroundings in which living organisms exist, including the physical factors such as air, water, and land, as well as the other living things.
Question 2: What is pollution?
Answer: Pollution is the introduction of harmful substances or products into the environment.
Question 3: Identify three types of pollution.
Answer:
- Air pollution
- Water pollution
- Land pollution
Question 4: What are some causes of pollution?
Answer:
- Burning of fossil fuels
- Industrial waste
- Improper disposal of waste
Question 5: Describe an effect of pollution on the environment.
Answer: Pollution can harm living organisms and disrupt the natural balance of ecosystems.
Question 6: Suggest a way to prevent pollution.
Answer: Reduce, Reuse, Recycle waste to minimize the amount of waste that ends up in landfills and oceans.
Q: 11. What are some causes of water pollution?
Q: 7. What is water pollution?
Ans: Water pollution is the contamination of water bodies such as lakes, rivers, oceans, aquifers, and groundwater.
Ans: Water pollution is the contamination of water bodies such as lakes, rivers, oceans, aquifers, and groundwater.
Q: 8. What causes water pollution?
Ans: Water pollution happens when substances that make the water poisonous or less useful are allowed to flow into our water sources.
Ans: Water pollution happens when substances that make the water poisonous or less useful are allowed to flow into our water sources.
Q: 9. Why is water important?
Ans: Water is important for all living organisms as it supports life.
Ans: Water is important for all living organisms as it supports life.
Q: 10. Name some common water sources.
Ans:
Ans:
- Rain
- Lakes
- Streams
- Dams
- Rivers
Q: 11. What are some causes of water pollution?
Answer: Human activities, industrial waste, and agricultural runoff.
Q: 12. Why is polluted water harmful to humans?
Answer: It contains disease-causing bacteria and viruses.
Q: 13. What is eutrophication?
Answer: Excessive plant growth due to excess nutrients.
Q: 14. What happens when there is too much algal growth in water sources?
Answer: Harmful conditions for aquatic life.
Q: 15. What is the effect of too much algal growth on aquatic organisms?
Answer: Oxygen depletion.
Q: 16. What are some ways to prevent water pollution?
Answer: Treating sewage waste, using latrines correctly, and avoiding livestock grazing near water sources.
Q: 17. Why should chemicals, oils, paints, and medicines not be thrown down sinks, drains, or toilets?
Answer: Because they can contaminate water sources.
Q: 18. What is the effect of overusing pesticides and fertilisers?
Answer: Run-off of the material into nearby water sources.
Q: 19. What is one way to reduce water pollution in public places?
Answer: Buying environmentally safe cleaning liquids.
Q: 20. Why should litter not be thrown into streams, lakes, rivers, or seas?
Answer: Because it contributes to water pollution.
Q: 21. What is the atmosphere composed of?
Answer: A layer of mixed gases, including nitrogen, oxygen, rare gases, water vapour, and carbon dioxide.
Q: 22. What is air pollution?
Answer: The introduction of chemicals, particulates, or biological materials into the atmosphere.
Q: 23. What are some effects of air pollution on humans and the environment?
Answer: Discomfort, disease, death, damage to living organisms, and damage to the natural and built-up environment.
Q: 24. What are some natural events that cause air pollution?
Answer: Forest fires, volcanic eruptions, wind erosion, pollen dispersal, and natural radioactivity.
Q: 25. What is radioactivity?
Answer: The emission of energy waves called radiation.
Q: 26. What are some human activities that result in air pollution?
Answer: Emissions from industries and manufacturing activities, burning fossil fuels, and the use of household and farming chemicals.
Q: 27. What is an incinerator?
Answer: A furnace for burning garbage to ashes.
Q: 28. What is toxic?
Answer: Poisonous and able to cause harm and possibly death.
Q: 29. What is the effect of carbon monoxide on the human body?
Answer: It reduces the amount of oxygen reaching the body's organs and tissues.
Q: 30. What is released into the air by petroleum refineries?
Answer: Hydrocarbons, which are chemicals made of carbon and hydrogen.
Q: 31. What is acid rain?
Answer: Acidic compounds formed by chemical reactions involving air pollutants and water.
Q: 32. What are the effects of exposure to air pollution on human health?
Answer: Breathing difficulties, headaches, irritation to the eyes, nose and throat, and upper respiratory tract infections.
Q: 33. What are the long-term effects of air pollution on human health?
Answer: Chronic respiratory disease, lung cancer, heart disease, and damage to the brain, nerves, liver, or kidneys.
Q: 34. How does air pollution affect crops?
Answer: Air pollution may damage crops by affecting their growth in the fields.
Q: 35. What is the effect of CFCs on the ozone layer?
Answer: CFCs cause the ozone layer to become thin, allowing more ultraviolet rays to pass through and reach the earth's surface.
Q: 36. Why is it important to reduce air pollution in our communities?
Answer: Air pollution is harmful to life.
Q: 37. What are some ways to reduce air pollution at home?
Answer: Conserve energy, add insulation, recycle, plant deciduous trees, and use green electricity.
Q: 38. What is the benefit of recycling paper, plastic, glass bottles, cardboard, and aluminium cans?
Answer: It conserves energy and reduces production emissions.
Q: 39. What is green electricity?
Answer: Electricity produced from resources that are renewed, such as sunlight, wind, waves, and geothermal heat.
Q: 40. Why is it recommended to lower the temperature setting on the thermostat on your hot water cylinder to 60 °C?
Answer: To conserve energy and reduce air pollution.
Q: 41. What type of paints, stains, finishes, and paint strippers should be used to avoid poisonous fumes?
Answer: Water-based ones.
Q: 42. Why is it recommended not to burn garden refuse?
Answer: To reduce household waste and air pollution.
Q: 43. What are some ways to reduce pollution when buying products?
Answer: Buying energy-efficient appliances, choosing products with recyclable packaging, buying recycled products, and using fabric bags for shopping.
Q: 44. What are some ways to drive wisely and reduce air pollution?
Answer: Planning trips, keeping vehicle tyres correctly inflated, using public transport, walking, or riding a bicycle, and having regular vehicle maintenance checks.
Q: 45. Why is it important to have your vehicle's engine tuned and its maintenance checks done at regular intervals?
Answer: To reduce air pollution and ensure the vehicle runs efficiently.
Q: 46. What is land pollution?
Answer: The degradation or destruction of the earth's land surfaces and soil, often as a result of human activities and the misuse of land resources.
Q: 47. Why is it important to reduce land pollution?
Answer: To preserve the earth's land surfaces and soil for future use.
Q: 48. What are some human activities that contribute to land pollution?
Answer: Industrial development, mining, farming, construction of roads and other infrastructures, and storing water.
Q: 49. What are some ways to reduce land pollution?
Answer: Proper waste disposal, recycling, reusing materials, and sustainable land use practices.
Q: 50. Why is sustainable land use important?
Answer: To ensure that land resources are used in a way that maintains their quality and productivity for future generations.
Q: 51. What are some causes of land pollution?
Answer: Deforestation, soil erosion, agricultural activities, industrialisation, mining activities, overcrowded landfills, nuclear waste, and sewage treatment.
Q: 52. What is deforestation?
Answer: The act of cutting down and removing trees or forests.
Q: 53. What are some effects of land pollution?
Answer: Loss of soil fertility, air pollution, increased soil accumulation in water bodies, reduction of natural vegetation, poor health conditions, and reduced attractiveness of an area.
Q: 54. What are some ways to prevent land pollution?
Answer: Raising awareness about Reduce, Recycle, and Reuse, supporting recycling activities, and practicing sustainable land use.
Q: 55. What does the concept of Reduce, Recycle, and Reuse mean?
Answer: Reducing waste, recycling materials, and reusing products to minimize waste and prevent land pollution.
Q: 56. What are some ways to reduce land pollution from agricultural activities?
Answer: Reducing the use of pesticides and fertilizers, and practicing organic gardening.
Q: 57. How can individuals reduce the amount of garbage that ends up in landfill sites?
Answer: By reducing packaging, not littering, and disposing of garbage appropriately.
Q: 58. What is biodegradable?
Answer: Able to be broken down by biological means, such as bacteria.
Q: 59. What are some ways to reduce land pollution from vehicles?
Answer: Using a drip tray to collect engine oil, not dumping motor oil on the ground, and buying biodegradable products.
Q: 60. Why is it important to create landfill sites away from residential areas?
Answer: To reduce the impact of land pollution on human health and the environment.
Q: 61. Why is it important to address pollution?
Answer: To protect the environment, human health, and the well-being of future generations.
Q: 62. What is required to effectively address pollution?
Answer: A collaborative effort from individuals, communities, organizations, and governments.
Q: 63. What can be achieved by reducing pollution?
Answer: A cleaner, healthier environment that supports the well-being of all living things.
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